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Displaying 121 - 140 of 5651

Surface fuel information is an essential input for models of fire behaviour and fire effects. However, spatially explicit, continuous information on surface fuel loads and fuelbed depth is scarce because the collection of field data is laborious,…
Author(s): Pia Labenski, Michael Ewald, Sebastian Schmidtlein, Faith A. Heinsch, Fabian Ewald Fassnacht
Year Published:

Lodgepole pine (Pinus contorta var. latifolia) has a reputation for indestructibility, but recent events in the Southern Rockies may have pushed even this stalwart species to the edge. Research by Rocky Mountain Research Station (RMRS) scientist…
Author(s): Charles C. Rhoades
Year Published:

During a wildland fire event, firefighters often receive significant exposure to smoke consisting of particulate matter (PM) and gaseous emissions. Major respiratory and cardiovascular health concerns are related to inhalation of smoke and…
Author(s): Priya Garg, Siyan Wang, Jessica Oakes, Chiara Bellini, Michael J. Gollner
Year Published:

Structure loss is an acute, costly impact of the wildfire crisis in the western conterminous United States (“West”), motivating the need to understand recent trends and causes. We document a 246% rise in West-wide structure loss from wildfires…
Author(s): Philip E. Higuera, Maxwell C. Cook, Jennifer Balch, E. Natasha Stavros, Adam L. Mahood, Lise A. St. Denis
Year Published:

Background Increases in fire activity and changes in fire regimes have been documented in recent decades across the western United States. Climate change is expected to continue to exacerbate impacts to forested ecosystems by increasing the…
Author(s): Tzeidle N. Wasserman, Stephanie E. Mueller
Year Published:

Interactions between vegetation and sediment in post-fire landscapes play a critical role in sediment connectivity. Prior research has focused on the effects of vegetation removal from hillslopes, but little attention has been paid to the effects of…
Author(s): Kailey V. Adams, Jean L. Dixon, Andrew C. Wilcox, Dave McWethy
Year Published:

There are approximately 1.2 million firefighters in the United States. In addition to fighting fires, they also participate in various tasks including emergency rescues, providing emergency medical care, driving, operating and maintaining fire…
Author(s): Crystal D. Forester, Jay Tarley
Year Published:

Fire–vegetation feedbacks potentially maintain global savanna and forest distributions. Accordingly, vegetation in savanna and forest ecosystems should have differential responses to fire, but fire response data for herbaceous vegetation have yet to…
Author(s): Zachary J. Gold, Adam F. A. Pellegrini, Tyler Refsland, Romina J. Andrioli, Marlin L. Bowles, Dale G. Brockway, Neil D. Burrows, Augusto C. Franco, Stephen W. Hallgren, Sarah E. Hobbie, William A. Hoffmann, Kevin P. Kirkman, Peter B. Reich, Patrice Savadogo, Divino V. Silverio, Kirsten Stephan, Tercia Strydom, J. Morgan Varner, Dale D. Wade, Allan J. Wills, A. Carla Staver
Year Published:

An atmospheric river (AR) is a strong filamentary water vapor transport that plays a critical role in regional hydroclimate systems. While climate conditions can affect wildfire activities, the process by which ARs are associated with wildfire…
Author(s): Ju-Mee Ryoo, Taejin Park
Year Published:

Large outdoor fires such as wildfires, wildland urban interface (WUI) fires, urban fires, and informal settlement fires have received increased attention in recent years. In order to develop effective emergency plans to protect people from threats…
Author(s): Negar Elhami-Khorasani, Max Kinateder, Vincent Lemiale, Sam Manzello, Ido Marom, Leorey Marquez, Sayaka Suzuki, Maria Theodori, Yu Wang, Steven Wong
Year Published:

Fire regimes are changing dramatically worldwide due to climate change, habitat conversion, and the suppression of Indigenous landscape management. Although there has been extensive work on plant responses to fire, including their adaptations to…
Author(s): Alice Michel, Jacob R. Johnson, Richard Szeligowski, Euan G. Ritchie, Andrew Sih
Year Published:

Burn severity is commonly assessed using Burn Ratios and field measurements to provide land managers with estimates of the degree of burning in an area. However, less commonly studied is the ability of spectral indices and Burn Ratios to estimate…
Author(s): David M. Szpakowski, Jennifer L. Rooker Jensen, T. Edwin Chow, David R. Butler
Year Published:

Firebrands generated from wildfires can contribute to wildfire spread and are a threat to structures in the wildland-urban interface (WUI). Understanding the characteristics such as the firebrand size, mass and heat flux to the recipient fuel are…
Author(s): Sampath Adusumilli, David L. Blunck
Year Published:

High-severity fires and short-interval reburns strongly influence forest structure and composition and may overwhelm forest ecosystem resilience and catalyze persistent shifts to non-forest conditions. Recent increases in annual area burned and…
Author(s): Melissa Jaffe, Mark R. Kreider, David L.R. Affleck, Philip E. Higuera, Carl A. Seielstad, Sean A. Parks, Andrew J. Larson
Year Published:

Sagebrush ecosystems in the United States have been declining since EuroAmerican settlement, largely due to agricultural and urban development, invasive species, and altered fire regimes, resulting in loss of biodiversity and wildlife habitat. To…
Author(s): Douglas J. Shinneman, Eva K. Strand, Michael L. Pellant, John T. Abatzoglou, Mark W. Brunson, Nancy F. Glenn, Julie A. Heinrichs, Mojtaba Sadegh, Nicole M. Vaillant
Year Published:

Historical logging practices and fire exclusion have reduced the proportion of pine in mixed-conifer forests of the western United States. To better understand pine’s decline, we investigate the impact of historical logging on the tree regeneration…
Author(s): Emily G. Brodie, Eric E. Knapp, Andrew Latimer, Hugh Safford, Marissa Vossmer, Sarah M. Bisbing
Year Published:

Fire regimes are a major agent of evolution in terrestrial animals. Changing fire regimes and the capacity for rapid evolution in wild animal populations suggests the potential for rapid, fire-driven adaptive animal evolution in the Pyrocene. Fire…
Author(s): Gavin M. Jones, Joshua F. Goldberg, Taylor M. Wilcox, Lauren B. Buckley, Catherine L. Parr, Ethan B. Linck, Emily D. Fountain, Michael K. Schwartz
Year Published:

Fire regimes in sagebrush (Artemisia spp.) ecosystems have been greatly altered across the western United States. Broad-scale invasion of non-native annual grasses, climate change, and human activities have accelerated wildfire cycles, increased…
Author(s): Michele R. Crist, Rick Belger, Kirk W. Davies, Dawn Davis, James R. Meldrum, Douglas J. Shinneman, Thomas E. Remington, Justin L. Welty, Kenneth E. Mayer
Year Published:

Background: Previously established correlations of flame length L with fireline intensity IB are based on theory and data which showed that flame zone depth D of a line fire could be neglected if L was much greater than D. Aims: We evaluated this…
Author(s): Mark A. Finney, Torben Grumstrup
Year Published:

The surface fire spread involved slope and wind effects are significantly important in wildland fires, while very limited attention has been paid on the heat transfer mechanism, especially for different fire line conditions. This work experimentally…
Author(s): Hanwen Guo, Dong Xiang, Yunji Gao, Yuchun Zhang
Year Published: